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- W2151546856 abstract "PurposeWe have designed a novel biodegradable, aligned nanofibrous scaffold for augmenting the repair of meniscal tears historically considered irreparable. As a first step in this endeavor, scaffold fixation to meniscal tissue was quantified by comparing suture pull-out from scaffolds and fixation strength to the native tissue.MethodsTwo suture types: monofilament (Prolene) and braided (Ticron) of equal diameter; and, two knots: horizontal mattress (HM) and -caprolacone fiber aligned and ε vertical mattress (VM) were investigated. Poly- non-aligned meshes were produced via electrospinning. Tensile testing to failure of the suture was carried out at 0.1% elongation/second. An “apparent” Young’s modulus was calculated from the stress-strain profile and scaffold geometry. Subsequently, circumferentially aligned bovine meniscal strips were sutured parallel to aligned scaffolds using single or double VM or HM with Ticron suture.ResultsThe apparent Young’s modulus was 15 MPa for the aligned group sutured with a Ticron HM compared to 5 MPa for the same scaffold sutured with a Prolene HM (Figure 1, left, p<0.01). There was no significant difference in the tensile strength between HM and VM knots. When sutured to native meniscus, double knots provided slightly stronger fixation (Figure 1, right).ConclusionThis study confirms that aligned scaffolds have superior tensile properties compared to non-aligned scaffolds and that a braided Ticron suture material provides a more stable fixation. Moreover, increasing number of VM Ticron knots were shown to improve the fixation strength of fiber-aligned scaffolds to the native tissue. PurposeWe have designed a novel biodegradable, aligned nanofibrous scaffold for augmenting the repair of meniscal tears historically considered irreparable. As a first step in this endeavor, scaffold fixation to meniscal tissue was quantified by comparing suture pull-out from scaffolds and fixation strength to the native tissue. We have designed a novel biodegradable, aligned nanofibrous scaffold for augmenting the repair of meniscal tears historically considered irreparable. As a first step in this endeavor, scaffold fixation to meniscal tissue was quantified by comparing suture pull-out from scaffolds and fixation strength to the native tissue. MethodsTwo suture types: monofilament (Prolene) and braided (Ticron) of equal diameter; and, two knots: horizontal mattress (HM) and -caprolacone fiber aligned and ε vertical mattress (VM) were investigated. Poly- non-aligned meshes were produced via electrospinning. Tensile testing to failure of the suture was carried out at 0.1% elongation/second. An “apparent” Young’s modulus was calculated from the stress-strain profile and scaffold geometry. Subsequently, circumferentially aligned bovine meniscal strips were sutured parallel to aligned scaffolds using single or double VM or HM with Ticron suture. Two suture types: monofilament (Prolene) and braided (Ticron) of equal diameter; and, two knots: horizontal mattress (HM) and -caprolacone fiber aligned and ε vertical mattress (VM) were investigated. Poly- non-aligned meshes were produced via electrospinning. Tensile testing to failure of the suture was carried out at 0.1% elongation/second. An “apparent” Young’s modulus was calculated from the stress-strain profile and scaffold geometry. Subsequently, circumferentially aligned bovine meniscal strips were sutured parallel to aligned scaffolds using single or double VM or HM with Ticron suture. ResultsThe apparent Young’s modulus was 15 MPa for the aligned group sutured with a Ticron HM compared to 5 MPa for the same scaffold sutured with a Prolene HM (Figure 1, left, p<0.01). There was no significant difference in the tensile strength between HM and VM knots. When sutured to native meniscus, double knots provided slightly stronger fixation (Figure 1, right). The apparent Young’s modulus was 15 MPa for the aligned group sutured with a Ticron HM compared to 5 MPa for the same scaffold sutured with a Prolene HM (Figure 1, left, p<0.01). There was no significant difference in the tensile strength between HM and VM knots. When sutured to native meniscus, double knots provided slightly stronger fixation (Figure 1, right). ConclusionThis study confirms that aligned scaffolds have superior tensile properties compared to non-aligned scaffolds and that a braided Ticron suture material provides a more stable fixation. Moreover, increasing number of VM Ticron knots were shown to improve the fixation strength of fiber-aligned scaffolds to the native tissue. This study confirms that aligned scaffolds have superior tensile properties compared to non-aligned scaffolds and that a braided Ticron suture material provides a more stable fixation. Moreover, increasing number of VM Ticron knots were shown to improve the fixation strength of fiber-aligned scaffolds to the native tissue." @default.
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- W2151546856 date "2006-06-01" @default.
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- W2151546856 title "Suture Fixation of Biodegradable Nanofibrous Poly-Caprolactone Scaffolds to Bovine Meniscus: A Novel Approach to Repairing Meniscal Tears (SS-48)" @default.
- W2151546856 doi "https://doi.org/10.1016/j.arthro.2006.04.050" @default.
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